Bourns, Inc. has expanded its family of Multifuse polymer PTC (PPTC) resettable fuses, the Model MF-ASML/X Series, with a new higher power rated model. The Model MF-ASML075/6 features a maximum 0.75 A (Ihold) rating. In addition, with its ultra-compact 0402 footprint, the overcurrent/overtemperature fuses offer a new solution for space-constrained applications.
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The latest PPTC resettable fuses also deliver several improvements, including increased voltage ratings (Vmax) and enhanced resistance stability. These enhancements target a variety of applications, primarily for low-voltage DC ports found in consumer products such as wearables, toys and gaming applications.
The Model MF-ASML075/6 is based on the company’s freeXpansion technology, which enables the fuses to handle higher currents and voltages. It also improves resistance stability and allows for a smaller footprint. The new devices also feature the unique titanium carbide material with a lower resistance and oxidation resistance in humid environments.
“A lower resistance is valuable because it contributes to higher power efficiency, while oxidation resistance aids in achieving an enhanced quality and reliability level,” Bourns said.
In addition, the Multifuse PPTC resettable fuses, including the new family, use electroless nickel immersion gold plating on the SMD terminals, which is reported to offer better corrosion resistance and excellent electrical conductivity, compared to traditional nickel-tin.
Available now, the Multifuse Model MF-ASML/X Series is RoHS compliant and halogen-free.
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